Observed rotational splittings (open symbols) for modes of degrees l = 1 (circles) and l = 2 (squares) plotted as a function of the parameter ζ obtained from the best-fit stellar models (ζ measures the trapping of the modes, with ζ → 0 for p-dominated and ζ → 1 for g-dominated modes). The splittings obtained with the inverted values of ⟨Ω⟩_g and ⟨Ω⟩_p (see Sect. 4) are shown as filled symbols. The dashed and dotted lines show the expected rotational splittings for l = 1 and 2 modes, respectively, when fitting Eq. (8) to the observations.